Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
630-241 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 0 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 1 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 2 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 3 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 4 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 6 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 7 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 8 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-271 9 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-275 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-322 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-324 3 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2000-06-19   
630-434 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 0 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 1 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 2 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 3 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 4 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 5 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 6 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 7 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-435 8 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-437 2 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2001-01-27   
630-437 3 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2001-01-27   
630-437 4 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2001-01-27   
630-437 6 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2001-01-06   
630-437 7 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2001-01-06   
630-437 8 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2001-01-06   
630-437 9 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2001-01-06   
630-493 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-598 6 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2005-07-12   
630-598 7 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2005-07-12   
630-598 8 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2005-07-12   
630-663 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-769 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 A Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 1 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 2 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 3 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 4 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 5 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 7 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-795 8 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358      
630-991 4 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2006-01-16   
630-991 5 Downers Grove IL 9329 ILLINOIS BELL TEL CO 358   2006-01-16   

Last updated: Thu, 04 Aug 2022 23:14:42 UTC

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